Improvement in burglar-alarms



'ciale alemanas,

ters thereon.

where the danger is to be made known, and

A known are located the relays L M and J K;

and F F, connected with relays by wires 2G rimes snm been Param.Attricee JOHN MORGAN, JR., OFYVHEELING, WEST VIRGINIA.

' "IMPROVEMENT In'r BURGLRJALAR'I'WS' Specification forming part ofLetters Patent No. l HYA 13, dated July 25, 1871.-

TO aZZ whom, it may concern:

Be it known that I, JOHN Mone-1N, Jr., of Vheeling, in the county ofOhio and State of XVest Virginia, have invented a new and ImprovedBurglar and Danger-Alarm, of which the following is a specification,reference being had to the annexed drawing and the let- My inventionrelatesl to the hereinafter-described arrangement of apparatus, operatedby electricity, for the purpose heretofore indicated; one part of whichis located at the place to be guarded, another part at the place anotherpart connecting the two 'former together.

At the place to be guarded, as, for instance, the vault marked 3 in thedrawing, are lo-v cated the pendulum S, and its accompanying clock-workto give it motion; the elastic points T and U, against which thependnlumalternat-ely touches as it swings backward and forward; wire 17connecting pendulum with the ground; keys-A B and O, D, connected withclock-points T and Uby wires 18 and 19; arm C, which presses against thekeys A B and C D, and also against the door or opening. At the placewhere the danger is to be made battery Z, connected with relays by wires2l and 25; local batteries A, connected with relays by wires 27 and 29;local magnets M N and 30, and with local batteries by wires 28 and 31;also, the spring clock-wheel l? R, which engages a similar wheel behindwheel O P, and into which the wheel M O engages. The spring-hammer S Tengages in the wheel O P, and pendulum G H works in the wheel M O. Theformer and latter arrangements are connected the one with the other bywires 22 and 23.

The pendulum- S being put into motion by the clock-work when it touchesthe point T, there is a complete electrical circuit made, thus: fromground in or near vault, through wire 17, pendulum S, point T, wire 1S,key A B, wire 22, relay J K, wire 25, and battery Z. This being the casethe relay J K is closed, which brings armature 36 in, thereby closinglocal magnet F F, which draws the pendulum G I-Ito it, which causes thehammer R S to strike gong V W. As soon as pen lum swings away from pointT the circuit broken and armature 36 iiies back, destroyi circuit inlocal F F, and then pendulum G swings away/,to be drawn to local M N assc as the other circuit is made by the pendnl S touching point U. Thependulum G H, this arrangement, vibratesin accord with pei ulum S. 'Ifeither of the wires 22 and 2E broken it will stop the beat of gong V WV;both are broken, or door of vault is opened makes the pendulum G li hangperpendicu and still, and this allows the spring-whee R to run ott' andrapidly ring gong V XV; either or both of the wires 22 and 23 z groundedoutside ol" the vaultit will che and hold the pendulum G H 'to one siithereby stopping the beat of hammer 4S upon gong V W'.

If any one were well enough acquainted w this arrangement to prepare aclock with t same beat, to use it would still give alarm, i

less he also caught the same swinging time a direction of pendulum S,but this can be ov come by changing every day the beat and reetion ofthe pendulum S. n

It is evident that the wires, after leavi pendulum S, can be run allaround the si( of the vault, so as to make it impossible disturb it inany place without interferi with them. It is also evident that this zrangement can be so connected with a buil ing as to give notice of fire.

Having thus described the relative arrang ment of the apparatus whichcompose my: vention, and the operation of the same fort object intended,I claim as my invention, a desire to secure by Letters Patent, thei'ollo ing:

The arrangement,herein shown,of the per ulum S, connected by wire 17 tothe grour clock-points T and U, wires 18 and 19, ke A B and O D, arm O,wires 22 and 23, rela L M and J K, battery Z, wires 24 and magnets F Fand M N, wires 26 and 30, lo batteries A, wires 28 and 31, andI pendulrG II, substantially as and for the purpo: herein set forth.

J N O. MORGAN, J R.

Witnesses:

J. A. McGRnw, O. M. SHANE.

